/Engine/Plugins/Editor/GuidedTutorials/Source/IntroTutorials/Public/IIntroTutorials.h
Register a new category with the tutorial browser. Categories are automatically created when tutorial blueprints are discovered, but this will allow you to apply some customization for tutorial categories defined by plugins
void RegisterCategory ( [FTutorialCategory](API\Plugins\IntroTutorials\FTutorialCategory) NewCategory )